User Manual

Yealink Skype for Business HD IP Phones Administrator Guide
310
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
voice.echo_cancellation
0 or 1
1
Description:
Enables or disables AEC (Acoustic Echo Canceller) feature on the Skype for Business phone.
0-Disabled
1-Enabled
Web User Interface:
Settings->Voice->Echo Cancellation->ECHO
Phone User Interface:
None
To configure AEC via web user interface:
1. Click on Settings->Voice.
2. Select the desired value from the pull-down list of ECHO.
3. Click Confirm to accept the change.
Background Noise Suppression (BNS)
Background noise suppression (BNS) is designed primarily for hands-free operation and reduces
background noise to enhance communication in noisy environments.
Automatic Gain Control (AGC)
Automatic Gain Control (AGC) is applicable to hands-free operation and is used to keep audio
output at nearly a constant level by adjusting the gain of signals in certain circumstances. This
increases the effective user-phone radius and helps with the intelligibility of soft-talkers.